Lagrangian for RC circuit

  • Thread starter softport
  • Start date
  • #1
13
0
Hello,
is it possible to write a Lagrangian (L) for a simple RC (or RL) circuit?

Normally L = kinetic - potential energy, but how would you write
this for an RC circuit?

thanks!
 

Answers and Replies

  • #2
649
2
You'd use the charge q(t) at some point in the circuit, as the unknown function in the Lagrangian fomulation. This turned up after searching for "rcl circuit lagrangian" on google:

http://www.phys.ttu.edu/~huang24/Teaching/Phys5306/CH2C.pdf" [Broken]
 
Last edited by a moderator:
  • #3
13
0
Thanks torquil, I didn't find this on my searches. I'll study it
and post back.

regards
 

Related Threads on Lagrangian for RC circuit

  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
0
Views
952
  • Last Post
Replies
6
Views
4K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
4
Views
2K
  • Last Post
Replies
11
Views
32K
Replies
5
Views
1K
  • Last Post
Replies
3
Views
3K
Replies
2
Views
3K
  • Last Post
Replies
6
Views
2K
Top